jquery 逐渐放大

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery 逐渐放大示例</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <style>
        #box {
            width: 100px;
            height: 100px;
            background-color: red;
            margin: 50px;
        }
    </style>
</head>
<body>
    <div id="box"></div>
    <button id="zoomInBtn">放大</button>

    <script>
        $(document).ready(function() {
            $('#zoomInBtn').click(function() {
                $('#box').animate({
                    width: '+=50px',
                    height: '+=50px'
                }, 1000);
            });
        });
    </script>
</body>
</html>

$('#zoomInBtn').click(function() {
    $('#box').animate({
        width: '+=50px',
        height: '+=50px'
    }, 1000, function() {
        // 动画完成后回调函数
        $(this).animate({
            width: '100px',
            height: '100px'
        }, 1000);
    });
});

#box {
    width: 100px;
    height: 100px;
    background-color: red;
    margin: 50px;
    transition: all 1s ease;
}

#box.enlarged {
    width: 150px;
    height: 150px;
}

$('#zoomInBtn').click(function() {
    $('#box').addClass('enlarged');
});